Is Kim Soo Hyun doing a Daniel Radcliffe? The 29-year-old actor has made a name for himself playing cute and dorky roles, from a geeky student (Dream High) to an adorable alien (My Love from the Star). But in his new action-thriller Real, he does a 180 — shedding his togs and baring his tush to play an ambitious underworld broker. Sounds like someone who went from boy wizard to all-grown-up, slipping into his birthday suit for his role as a psychiatric patient in Equus.

Unfortunately, for all Soo Hyun’s um, sacrifice, Real bombed at the box office and was slammed with bad reviews from both fans and critics alike, who pegged it as one of the worst films in Korean history. One netizen called it “the worst cheap porn ever made.” Ouch.

Close encounters: Kim Soo Hyun and Sulli get Real-ly intimate.

Soo graphic: Leaked footage showing Sulli getting nekkid and doing naughty things to Soo Hyun.The film, about a city in the grip of the underworld, contains much-talked-about sex scenes where the actor gets frisky with former f(X) member Sulli in a steamy bed romp that would make the camera blush. Yes, imagine our (Electric) Shock to learn that the once-upon-a-time squeaky-clean K-pop star bares all in the show. For Real. Sulli’s leaked (hmm, really?) nude scenes have spread online faster than she sheds her threads in the film. Looks like the 23-year-old is gonna make quite the impression in her big screen debut. The explicit movie, directed by Soo Hyun’s cousin, comes with a 19+ rating due to its depiction of sex, drugs and murder.

The risqué-takers have spoken candidly about their NSFW scenes. Sulli was all praise for her co-star’s smooching skills. “His lips were delicious,” she recalled. Meanwhile, Soo Hyun said: “We were concerned ’cos nudity was involved in that [bed] scene. At first, Sulli and I had trouble saying our lines ’cos we were too busy sucking in our stomachs. Since our stomach muscles were all tensed up, our voices came out sounding like mosquitoes. We ended up causing a lot of bloopers.” Did someone say belly unsexy?